Hoist crane



1. SUMMER.

HOIST CRANE.

1,407,005. APPLICATION FILED JUNE 7. I920- 2 SHEETS-SHEET llllIlIIII J.SOMMER,

HOIST CRANE.

APPLICATION FILED JUNE 7. 1920- Patented Feb. 21, 1922.

2 SHEETS-SHEET 2.

[v y TOR {following is a specification.

UNITED STATES PATENT OFFICE.

JOHN SUMMER, OF PEORIA, ILLINOIS, ASSIGNOR, BY'MESNE ASSIGNMENT S, TOTHE UNION TRUST COMPANY, OF CLEVELAND, OHIO, A CORYOR ATION OF OHIO, ANDJOHN A. CHAPMAN, OF CHICAGO, ILLINOIS, TRUSTEES.

norsm CRANE.-

IADLOOS. V I

' Application filed June 7,

To aZZ who-m it may concern;

Be 1t known that I, JOHN SOMMER, a citzeirof the United States, residingat Peoria, 111 the county of Peoria and State of Illinois, have inventednew and useful Improvements 1n Hoist Cranes, of which the This inventionhas reference to improvements in hoist cranes. V

The invention has for its principal obgect to improve the mounting forthe hoist cylinder, whereby the said cylinder may OSClllate upon itssupport, so as to relieve it of the severe strains due to the nttmg bythe 'llOlSt piston rod, when the carriage on which the cylinder ismounted is moved during the time of lifting.

Theinvention ms for a further object to provide a hoist crane includinga hoist carria e. said carria e llflVlllQ' a substantially universallymovable mounting for the hoist" cylinder, whereby the said cylinder mayoscillate, and thereby relieve the strain on the 'arriage duringtheinovcment of the latter and the raising of the hoist piston,

That the invention may be more fully understood, reference is had to theaccompanying drawings forming a part of the present description,illustrating a preferred embodiment of the invention, in which;

Fig. l is a side elevation of ahoist crane embodying my inventiompartsbeing broken awayto show the universal mounting for the hoist cylinderand the upper end 01' the said cylinder and hoist piston rod brokenaway;

Fig. 2 is a plan view of Fig. l, the hoist cylinder and piston rod shownin section; and

Fig. is an enlarged detail partly in sec 'tion showing the universalmounting for the "hoist cylinder, said mounting being os oillated intotwo diiierent positions to ijllustrate the l leaibility thereof.

Like characters of reference denote corresponding parts throughout thefigures.

Hoist cranes of the character herein retcrred to are not uncommon formill work, especially where it is desired to lift comparatively heavyloads and transfer the same to different points. The present inventionin hoists of this character is designed more particularly for use inwire drawing mills, although it may be found tohave general usage.

Specification of Letters Patent; Patented 21. 1922 1920. Serial No.387,010.

lVhen used in a wire drawing mill the hoist carrlage 1s mounted totravelabove' trucks to be transported to-distant points. 1

The stripping of the drawn hundlesof wire from the drawing blocks aconstant physi cal strain upon the workmen, which my invention isintended to, and does, avoid and thereby increasing not only theirefficiency, but results in increased tonnage in production.

In cranes of this character, employing a hoist cylinder with ahoistpiston operating. therein, the cylinders, so far as I am aware, have hadarigid mounting on the hoist carriage, and it follows that with the useof such a structure when-a load is lifted, and during such lifting thecarriage is moved, there is considerable"lateral strain placed upon. thecylinder, especially if the load is rather heavy, and this strain is notonly in,- jurious to the operatingmechanism, but the movement of thecarriage is retarded and V the speed with which the operation may beperformed is considerably lessened. lVith my improved carriage andinounting'for the hoist cylinder I overcomefthese objectionable teatinesand greatly lacllitate the movement of commodities and with less troublethan heretofore.

I In the drawings 1 designates a truck hav-.

ing wheels 2 which travel on rails 3'1nounted upon any suitableover-head structure'in a null or other place. The truck 1s provided-with rails l on which may travel or be moved the hoist arriage 5, thelatter having wheels "G'tor this purpose.

V The base 'of the hoist carriage 5'is eonstruoted of the longitudinaland transversely connected bars 7 and 8. To the 'bars 7 are co1.1nectecl-tl1e upstanding frame supports 9 formed with-plate extensions 10 toserve as bearing members for the axles of the wheels 6 of the carriage.These upstanding the plates 11.

In designates cross bracing sti'aos for connectin and bracin the 0posite corner supports.

For manually movingthe hoist carriage 5 on the truck 1, and also formoving the truck 1 together with the carriage on the should thus beapparent that an operator by gripping the rod or bar 13 may move thetruckl with the carriage 5 thereon to different points along the rails 3and after locating the truck in proximity tothe load to be lifted. theoperator may then move the carriage 5 on the truck to a position topermit the connection of the lifting mechanism with the load to beraised.

The lifting mechanism of the carriage comprises in the main the hoistcylinder 15 and the hoist piston rod 16 therein, thelatter provided witha suitable gripping hook 17, arranged to have connection with the loadto be lifted. I am not concerned about the characterof the poweremployed for extending, or retracting the hoist piston. rod 16,

nor the manner of-control thereof, or from what po nt the same may becontrolled, as

such devices are well known in t-heart and in detail form no particularpartof this invention. 1 a v v v The mounting for the cylinder 15 com-.prises a strap '18, preferably made in two sections and bolted aroundthe cylinder, the sections of said strap each having trunnions 19diametrically opposed. These trunnions are adapted to beseated inpreferably U- shaped bearings 20 formed on, or secured to theinsidejface of ring 21, and said trunnions 19 and bearings 20 provide apivotal connection betwen the cylinder 15 and the ring 21; To detach thecylinder from the ringit is only necessary to raise the cylinder to liftthe trunnionslt) out of bearings 20 as will be understod. i

The ring 21 is formed with hubs or bosses 22 to receive bolts 23, whichare also passed through the plates 11 and the bolts secured in positionby the nuts 2%. The bolts 23 form the fulcrum points on which the ring21 is pivotally connectedto the hoist carriage and said bolts 23 arepreferably disposed at right-angles to the position of the trunnions 19when journaled in the ring. 'ihus it will be observed that the ring 21maybe oscillatod on the hoist carriage through its connection therewithby means of the bolts 23, and the cylinder through the connection of thetrunnions 19 with the ring 21 may be oscillated in said ringQ'These two.pivotal connections, the ring with the carriageand the cylinder with thering provides and approximateuniversal connection between the cylinderand the carriage which will permit of various movements on the carriage,not only for the purpose of permitting a wide range .of locationof thehook 17 on the piston rod 16, but as the load is being lifted and thecarriage is being moved the strain upon the cylinder 'and piston, aswell as upon the carriage is'removed. i

What I claim is'z A V 1. In an apparatus of the character described, incombination, a wheeled truck including a pair of rails, a hoistcarriage, wheels supporting said carriage and movable on said rails,said carriage including an upstanding skeleton frame work, an annularring provided with diametrically op posed and internally arranged opentrunnion bearings, means pivotally connecting saidring, at points atright angles to said hearings to and within said frame work atthe. upperend thereof, and elongated hoisting member disposed inan uprightposition through the frame work of said carriage and, down between saidrails, a two part clamp secured about saidhoistiug member provided withdiametrically disposed trunnions adapted to have a removable bearingrelation in the bearings of said ring, and a handlebar secured to saidframework and depending therefrom and alongside of said truck, formoving the hoisting carriage on said rails and for moving said truckanccarriage.

2. In an'apparatus of the character described, in combination, ahoisting carriage,

including an upstanding skeleton frame work, wheel supports for saidcarriage journaled at the opposite four corners thereof, a ring locatedwithin and at the upper end of said frame work provided withdiametrically opposed open U trunnion bearings, pivot pinsfpivotallyconnecting said ring to said frame work, whereby said ring may beoscillated in one direction, a hoisting 'member disposed in an uprightposition through said ring and 'saidframe work, clamping members securedto and embracing said hoisting member, trunnions arranged diametaricallyon said clamping members adapted to have a 1'6ll]OVLblG'(fUl1- nectionwith said trunnion bearings, whereby said clamping members may beoscillated only in one direction in said ring, and a. handle bar securedto' and depending from said frame work. v

JOHN soMMER}.

